At a shelter, 15% of dogs are puppies. there are 60 dogs at the shelter. how many are puppies?

It is important to look at all the information’s already given in the question. Those information’s will come in handy while solving the question.
Number of dogs in the shelter = 60
Percentage of puppies in the shelter = 15%
Then
Number of puppies in the shelter = (15/100) * 60
                                                     = 900/100
                                                     = 9
So there are a total of 9 puppies in the shelter. I hope the procedure is clear enough for you to understand. I am glad to have helped you.

First subtract 10 from both side
y^2+6y-16=0
(y+8)(y-2)=0
-8 and 2